package com.github.mygreen.supercsv.cellprocessor.format;
   
   import java.util.Optional;
   
   import org.supercsv.cellprocessor.ift.CellProcessor;
   
   import com.github.mygreen.supercsv.builder.BuildCase;
   import com.github.mygreen.supercsv.builder.Configuration;
   import com.github.mygreen.supercsv.builder.FieldAccessor;
  import com.github.mygreen.supercsv.cellprocessor.ProcessorFactory;
  
  /**
   * 文字列をパースして、各オブジェクト型に変換するCellProcessor {@link ParseProcessor}を作成する。
   * 
   * @since 2.0
   * @author T.TSUCHIE
   *
   */
  public class ParseProcessorFactory<T> implements ProcessorFactory {
      
      @SuppressWarnings("unchecked")
      @Override
      public Optional<CellProcessor> create(final Optional<CellProcessor> next, final FieldAccessor field,
              final TextFormatter<?> formatter, final Configuration config,
              final BuildCase buildCase, final Class<?>[] groups) {
          
          final Class<T> fieldType = (Class<T>)field.getType();
          final TextFormatter<T> typeFormatter = (TextFormatter<T>)formatter;
          
          final ParseProcessor<T> processor = next.map(n -> new ParseProcessor<>(fieldType, typeFormatter, n))
                  .orElseGet(() -> new ParseProcessor<>(fieldType, typeFormatter));
          
          return Optional.of(processor);
          
      }
      
  }